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3 years ago

Can you please help me and quick

Mathematics

2 answers:

Hoochie [10]3 years ago

8 0

Answer:

Step-by-step explanation:

anything to 0th power is 1

Mama L [17]3 years ago

4 0

Answer:

Step-by-step explanation:

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If a car is going 100 mph how long will it take to go 1,045 miles

shepuryov [24]

Answer:

10.45

Step-by-step explanation:

because you divide 1,045 by 100.

8 0

3 years ago

Barbara drives between Miami, Florida, and West Palm Beach, Florida. She drives 50 mi in clear weather and then encounters a thu

cluponka [151]

Answer:

Her speed driving in nice weather is 50 mph and in thunderstorm is 32 mph.

Step-by-step explanation:

Barbara drives 50 miles in clear weather and then encounters a thunderstorm for the last 16 miles.

Suppose, her speed in nice weather is $x$ mph.

As she drives 18 mph slower through the thunderstorm than she does in clear weather, so her speed in thunderstorm will be: $(x-18) mph$

We know that, $Time = \frac{Distance}{Speed}$

So, the time of driving in clear weather $=\frac{50}{x}$ hours

and the time of driving in thunderstorm $=\frac{16}{x-18}$ hours.

Given that, the total time for the trip is 1.5 hours. So, the equation will be......

$\frac{50}{x}+ \frac{16}{x-18}=1.5 \\ \\ \frac{50x-900+16x}{x(x-18)}=1.5\\ \\ \frac{66x-900}{x(x-18)}=1.5 \\ \\ 1.5x(x-18)=66x-900\\ \\ 1.5x^2-27x=66x-900\\ \\ 1.5x^2-93x+900=0\\ \\ 1.5(x^2 -62x+600)=0\\ \\ x^2 -62x+600=0\\ \\ (x-50)(x-12)=0$

Using zero-product property.........

$x-50=0\\ x=50\\ \\ and\\ \\ x-12=0\\ x=12$

We need to ignore $x=12$ here, otherwise the speed in thunderstorm will become negative.

So, her speed driving in nice weather is 50 mph and her speed driving in thunderstorm is (50-18) = 32 mph

3 0

3 years ago

Find the unknown side or angle as indicated. Round each side length to the nearest tenth

Rainbow [258]

SOLVE THE EQUATIONS

8 0

3 years ago

Find the unit rate 30 in per 5 years the unit rate is inches per year

Ilya [14]

Answer:

6 inches per year/ 6;1

Step-by-step explanation:

30;5 can be simplified into a unit rate by dividing by 5. 30/5=6 and 5/5=1. So its 6 inches per one year

6 0

3 years ago

Pls answer asap :)

dezoksy [38]

Answer:

one fourth

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Can you please help me and quick​

Can you please help me and quick